/*
 * Copyright (c) 2010, Petr Panteleyev <petr@panteleyev.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice,
 *       this list of conditions and the following disclaimer in the documentation
 *       and/or other materials provided with the distribution.
 *    3. The name of the author may not be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.panteleyev.blogclient.photo;

import java.util.ArrayList;

import javax.swing.ImageIcon;
import javax.swing.table.AbstractTableModel;

/**
 *
 * @author Petr Panteleyev <petr@panteleyev.org>
 */
public class ThumbnailTableModel extends AbstractTableModel {
    private final ArrayList<ImageIcon> thumbnails;
    private int rowSize;

    public ThumbnailTableModel(ArrayList<ImageIcon> thumbnails) {
        this.thumbnails = thumbnails;
    }

    @Override
    public int getRowCount() {
        if (rowSize == 0) {
            return 0;
        } else {
            return thumbnails.size() / rowSize + (int)Math.signum(thumbnails.size() % rowSize);
        }
    }

    @Override
    public int getColumnCount() {
        return rowSize;
    }

    @Override
    public Object getValueAt(int row, int col) {
        int index = rowSize * row + col;
        return (index >= thumbnails.size())? null : thumbnails.get(index);
    }

    @Override
    public Class<?> getColumnClass(int column) {
        return ImageIcon.class;
    }

    public boolean calculateTableLayout(int width, int cellWidth) {
        int newRowSize = Math.min(thumbnails.size(), width / cellWidth);
        if (newRowSize != rowSize) {
            rowSize = newRowSize;
            fireTableStructureChanged();
            return true;
        } else {
            return false;
        }
    }

}
